[3] From 2002 Ajit Abeysekera (2002–2015), Ananda Dabare (2002-2012), Manilal Weerakoon (2002-2011) and Eshantha J. Peiris (2008-2015) have jointly held the position of principal conductor.

Sri Lankan, as well as soloists and conductors of other nationalities, including James Ross and Gregory Rose, have performed regularly with the orchestra on invitation.

[9][10][11][12][13][14] In 2013, SOSL gave its first performance at Colombo's new Nelum Pokuna Theatre conducted by James Ross, joined by 35 musicians from the UK and India to form The Commonwealth Festival Orchestra.

Its Christmas concert of December 2013 held at Bandaranaike Memorial International Conference Hall (BMICH) in Colombo saw the orchestra conducted by Eshantha Pieris and featured vocalists Charin Mendis and Sheranga Perera.

[21] The SOSL is a not for profit organisation which depends on public support as well as corporate sector and occasionally diplomatic sponsorship for its activities.